* * * * LICENSE: This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * @category Crypt * @package Crypt_Random * @author Jim Wigginton * @copyright MMVII Jim Wigginton * @license http://www.gnu.org/licenses/lgpl.txt * @version $Id: Random.php,v 1.4 2008/05/21 05:15:32 terrafrost Exp $ * @link http://phpseclib.sourceforge.net */ /** * Generate a random value. Feel free to replace this function with a cryptographically secure PRNG. * * @param optional Integer $min * @param optional Integer $max * @param optional String $randomness_path * @return Integer * @access public */ function crypt_random($min = 0, $max = 0x7FFFFFFF, $randomness_path = '/dev/urandom') { static $seeded = false; if (!$seeded) { $seeded = true; if (file_exists($randomness_path)) { $fp = fopen($randomness_path, 'r'); $temp = unpack('Nint', fread($fp, 4)); mt_srand($temp['int']); fclose($fp); } else { list($sec, $usec) = explode(' ', microtime()); mt_srand((float) $sec + ((float) $usec * 100000)); } } return mt_rand($min, $max); } ?>